Wikimedia Cloud Services now supports attachable block storage via the OpenStack Cinder project. Attachable block storage is a flexible storage option that allows you to create volumes local to your project but not coupled to a particular VM; they can be moved between different instances and persist after their associated volume is deleted. Project admins can access this feature via the 'Volumes' tab in Horizon.
I encourage all of you to start using Cinder storage for your new databases and large data sets. Over the next few months we'll be working to move various use cases onto Cinder volumes and off of NFS or LVM; soon I hope to deprecate large-storage flavor types entirely and support all new non-root file storage with Cinder.
The default storage quota is quite small, but we plan to be generous with quota increases. To request additional storage, open a phabricator ticket here:
https://phabricator.wikimedia.org/project/view/2880/
For more details about this feature, I've written a blog post, here:
https://techblog.wikimedia.org/2021/02/05/cinder-on-cloud-vps/
And, technical documentation can be found here:
https://wikitech.wikimedia.org/wiki/Help:Adding_Disk_Space_to_Cloud_VPS_inst...
Like any new feature, our implementation almost certainly includes bugs and missteps. Please provide feedback or feature requests via phabricator or on the cloud mailing list.
-Andrew + the WMCS Team